EPR Studies of Electron Irradiated Ice and Solid Hydrogen
Electron paramagnetic resonance studies of ice and H/sub 2/ irradiated in a 40-Mev electron linear accelerator are describ/sup 6/ or ice at 77 deg K and dosages of 9 x 10/sup 6/ and 18 x 10/sup 6/ rad, a strong resonance at g = 2 consisting of a doublet and other unresolved lines was observed; no H...
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| Veröffentlicht in: | Journal of Chemical Physics (U.S.) 1959-06, Vol.30 (6), p.1623-1624 |
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| container_issue | 6 |
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| container_title | Journal of Chemical Physics (U.S.) |
| container_volume | 30 |
| creator | Piette, L. H. Rempel, R. C. Weaver, H. E. Flournoy, J. M. |
| description | Electron paramagnetic resonance studies of ice and H/sub 2/ irradiated in a 40-Mev electron linear accelerator are describ/sup 6/ or ice at 77 deg K and dosages of 9 x 10/sup 6/ and 18 x 10/sup 6/ rad, a strong resonance at g = 2 consisting of a doublet and other unresolved lines was observed; no H atom splitting was observed. At 4.2 deg K and various dosages (cumulative) resonances 250 gauss each side of g = 2 appeared; the same unresolved structure in the g = 2 region was found. A maximum total H atom concentration of 8 x 10/sup 6/ moles was obtained at 16 x 10/sup 6/ rad. Higher doses produced no more H atoms. For solid H/sub 2/ at 4.2 deg K only H-atom lines were observed. Modulation frequency effects at high rf levels were studied. Dose saturation study indicated H-atom concentration saturation at 7.2 x lO/sup -6/ rad; the H-atom concentration was 1.5 x 10/sup -6/ mole/g. The saturation level may have been limited by beam heating effects. (T.R.H.) |
| doi_str_mv | 10.1063/1.1730259 |
| format | Article |
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Dose saturation study indicated H-atom concentration saturation at 7.2 x lO/sup -6/ rad; the H-atom concentration was 1.5 x 10/sup -6/ mole/g. The saturation level may have been limited by beam heating effects. 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H.</creatorcontrib><creatorcontrib>Rempel, R. C.</creatorcontrib><creatorcontrib>Weaver, H. E.</creatorcontrib><creatorcontrib>Flournoy, J. M.</creatorcontrib><creatorcontrib>Aerojet General Corp., Azusa, Calif</creatorcontrib><creatorcontrib>Varian Associates, Palo Alto, Calif</creatorcontrib><title>EPR Studies of Electron Irradiated Ice and Solid Hydrogen</title><title>Journal of Chemical Physics (U.S.)</title><description>Electron paramagnetic resonance studies of ice and H/sub 2/ irradiated in a 40-Mev electron linear accelerator are describ/sup 6/ or ice at 77 deg K and dosages of 9 x 10/sup 6/ and 18 x 10/sup 6/ rad, a strong resonance at g = 2 consisting of a doublet and other unresolved lines was observed; no H atom splitting was observed. At 4.2 deg K and various dosages (cumulative) resonances 250 gauss each side of g = 2 appeared; the same unresolved structure in the g = 2 region was found. A maximum total H atom concentration of 8 x 10/sup 6/ moles was obtained at 16 x 10/sup 6/ rad. Higher doses produced no more H atoms. For solid H/sub 2/ at 4.2 deg K only H-atom lines were observed. Modulation frequency effects at high rf levels were studied. Dose saturation study indicated H-atom concentration saturation at 7.2 x lO/sup -6/ rad; the H-atom concentration was 1.5 x 10/sup -6/ mole/g. The saturation level may have been limited by beam heating effects. (T.R.H.)</description><subject>ACCELERATORS</subject><subject>ATOMS</subject><subject>CHEMISTRY</subject><subject>ELECTRON BEAMS</subject><subject>ELECTRONS</subject><subject>ENERGY LEVELS</subject><subject>GASES</subject><subject>HYDROGEN</subject><subject>ICE</subject><subject>IRRADIATION</subject><subject>LOW TEMPERATURE</subject><subject>MAGNETIC RESONANCE</subject><subject>MEASURED VALUES</subject><subject>MICROWAVES</subject><subject>PRODUCTION</subject><subject>QUANTITY RATIO</subject><subject>RADIATION DOSES</subject><subject>RADIATION EFFECTS</subject><subject>RESOLUTION</subject><subject>SPECTRA</subject><subject>SPECTROSCOPY</subject><subject>TEMPERATURE</subject><issn>0021-9606</issn><issn>1089-7690</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1959</creationdate><recordtype>article</recordtype><recordid>eNotkD1PwzAURS0EEqEw8A8sNoaU914S2xlRFWilSiAKs-X6A4JCjOww9N9TaHWHuxxdXR3GrhHmCKK6wznKCqhpT1iBoNpSihZOWQFAWLYCxDm7yPkTAFBSXbC2e37hm-nH9T7zGHg3eDulOPJVSsb1ZvKOr6znZnR8E4fe8eXOpfjux0t2FsyQ_dWxZ-ztoXtdLMv10-Nqcb8uLal2KoNAYQ0RVmCcJESharLWKQVItZO1kraRWBkKjQ1BCECxJYmNJ6RtA9WM3Rx2Y556nW0_efth4zjuj-qa9vmHbg-QTTHn5IP-Tv2XSTuNoP_EaNRHMdUvfQ5Rkw</recordid><startdate>19590601</startdate><enddate>19590601</enddate><creator>Piette, L. 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C.</creatorcontrib><creatorcontrib>Weaver, H. E.</creatorcontrib><creatorcontrib>Flournoy, J. M.</creatorcontrib><creatorcontrib>Aerojet General Corp., Azusa, Calif</creatorcontrib><creatorcontrib>Varian Associates, Palo Alto, Calif</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Journal of Chemical Physics (U.S.)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Piette, L. H.</au><au>Rempel, R. C.</au><au>Weaver, H. E.</au><au>Flournoy, J. M.</au><aucorp>Aerojet General Corp., Azusa, Calif</aucorp><aucorp>Varian Associates, Palo Alto, Calif</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>EPR Studies of Electron Irradiated Ice and Solid Hydrogen</atitle><jtitle>Journal of Chemical Physics (U.S.)</jtitle><date>1959-06-01</date><risdate>1959</risdate><volume>30</volume><issue>6</issue><spage>1623</spage><epage>1624</epage><pages>1623-1624</pages><issn>0021-9606</issn><eissn>1089-7690</eissn><abstract>Electron paramagnetic resonance studies of ice and H/sub 2/ irradiated in a 40-Mev electron linear accelerator are describ/sup 6/ or ice at 77 deg K and dosages of 9 x 10/sup 6/ and 18 x 10/sup 6/ rad, a strong resonance at g = 2 consisting of a doublet and other unresolved lines was observed; no H atom splitting was observed. At 4.2 deg K and various dosages (cumulative) resonances 250 gauss each side of g = 2 appeared; the same unresolved structure in the g = 2 region was found. A maximum total H atom concentration of 8 x 10/sup 6/ moles was obtained at 16 x 10/sup 6/ rad. Higher doses produced no more H atoms. For solid H/sub 2/ at 4.2 deg K only H-atom lines were observed. Modulation frequency effects at high rf levels were studied. Dose saturation study indicated H-atom concentration saturation at 7.2 x lO/sup -6/ rad; the H-atom concentration was 1.5 x 10/sup -6/ mole/g. The saturation level may have been limited by beam heating effects. (T.R.H.)</abstract><doi>10.1063/1.1730259</doi><tpages>2</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0021-9606 |
| ispartof | Journal of Chemical Physics (U.S.), 1959-06, Vol.30 (6), p.1623-1624 |
| issn | 0021-9606 1089-7690 |
| language | eng |
| recordid | cdi_crossref_primary_10_1063_1_1730259 |
| source | AIP Digital Archive |
| subjects | ACCELERATORS ATOMS CHEMISTRY ELECTRON BEAMS ELECTRONS ENERGY LEVELS GASES HYDROGEN ICE IRRADIATION LOW TEMPERATURE MAGNETIC RESONANCE MEASURED VALUES MICROWAVES PRODUCTION QUANTITY RATIO RADIATION DOSES RADIATION EFFECTS RESOLUTION SPECTRA SPECTROSCOPY TEMPERATURE |
| title | EPR Studies of Electron Irradiated Ice and Solid Hydrogen |
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